Mesa (master): intel: Update intel_decode.c from intel-gpu-tools.

Eric Anholt anholt at kemper.freedesktop.org
Thu Jul 8 19:14:19 UTC 2010


Module: Mesa
Branch: master
Commit: e72b87736d8453e79bb6da48ba4cfcc2e97c8e14
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=e72b87736d8453e79bb6da48ba4cfcc2e97c8e14

Author: Eric Anholt <eric at anholt.net>
Date:   Thu Jul  8 12:12:54 2010 -0700

intel: Update intel_decode.c from intel-gpu-tools.

This came from commit cf255e382d147fe3ca450f0dcec3525190e7dcbc

---

 src/mesa/drivers/dri/intel/intel_batchbuffer.c |    2 +-
 src/mesa/drivers/dri/intel/intel_chipset.h     |    3 +
 src/mesa/drivers/dri/intel/intel_decode.c      |  618 ++++++++++++++++--------
 src/mesa/drivers/dri/intel/intel_decode.h      |    4 +-
 4 files changed, 435 insertions(+), 192 deletions(-)

diff --git a/src/mesa/drivers/dri/intel/intel_batchbuffer.c b/src/mesa/drivers/dri/intel/intel_batchbuffer.c
index 698445c..ff741fc 100644
--- a/src/mesa/drivers/dri/intel/intel_batchbuffer.c
+++ b/src/mesa/drivers/dri/intel/intel_batchbuffer.c
@@ -102,7 +102,7 @@ do_flush_locked(struct intel_batchbuffer *batch, GLuint used)
    if (INTEL_DEBUG & DEBUG_BATCH) {
       drm_intel_bo_map(batch->buf, GL_FALSE);
       intel_decode(batch->buf->virtual, used / 4, batch->buf->offset,
-		   intel->intelScreen->deviceID);
+		   intel->intelScreen->deviceID, GL_TRUE);
       drm_intel_bo_unmap(batch->buf);
 
       if (intel->vtbl.debug_batch != NULL)
diff --git a/src/mesa/drivers/dri/intel/intel_chipset.h b/src/mesa/drivers/dri/intel/intel_chipset.h
index cd614c5..72a7432 100644
--- a/src/mesa/drivers/dri/intel/intel_chipset.h
+++ b/src/mesa/drivers/dri/intel/intel_chipset.h
@@ -115,6 +115,9 @@
 				 devid == PCI_CHIP_I946_GZ || \
 				 IS_G4X(devid))
 
+/* Compat macro for intel_decode.c */
+#define IS_IRONLAKE(devid)	IS_GEN5(devid)
+
 #define IS_GEN6(devid)		(devid == PCI_CHIP_SANDYBRIDGE || \
 				 devid == PCI_CHIP_SANDYBRIDGE_M)
 
diff --git a/src/mesa/drivers/dri/intel/intel_decode.c b/src/mesa/drivers/dri/intel/intel_decode.c
index 650010a..25b4131 100644
--- a/src/mesa/drivers/dri/intel/intel_decode.c
+++ b/src/mesa/drivers/dri/intel/intel_decode.c
@@ -1,48 +1,21 @@
-/* -*- c-basic-offset: 4 -*- */
-/*
- * Copyright © 2007 Intel Corporation
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice (including the next
- * paragraph) shall be included in all copies or substantial portions of the
- * Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
- * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
- * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
- * IN THE SOFTWARE.
- *
- * Authors:
- *    Eric Anholt <eric at anholt.net>
- *
- */
-
-/** @file intel_decode.c
- * This file contains code to print out batchbuffer contents in a
- * human-readable format.
- *
- * The current version only supports i915 packets, and only pretty-prints a
- * subset of them.  The intention is for it to make just a best attempt to
- * decode, but never crash in the process.
- */
-
+#include <stdint.h>
 #include <stdio.h>
 #include <stdarg.h>
 #include <string.h>
-#include <inttypes.h>
 
 #include "intel_decode.h"
 #include "intel_chipset.h"
 
+static FILE *out;
+static uint32_t saved_s2 = 0, saved_s4 = 0;
+static char saved_s2_set = 0, saved_s4_set = 0;
+static uint32_t head_offset = 0xffffffff; /* undefined */
+static uint32_t tail_offset = 0xffffffff; /* undefined */
+
+#ifndef ARRAY_SIZE
+#define ARRAY_SIZE(A) (sizeof(A)/sizeof(A[0]))
+#endif
+
 #define BUFFER_FAIL(_count, _len, _name) do {			\
     fprintf(out, "Buffer size too small in %s (%d < %d)\n",	\
 	    (_name), (_count), (_len));				\
@@ -50,9 +23,6 @@
     return count;						\
 } while (0)
 
-static FILE *out;
-static uint32_t saved_s2 = 0, saved_s4 = 0;
-static char saved_s2_set = 0, saved_s4_set = 0;
 
 static float
 int_as_float(uint32_t intval)
@@ -71,15 +41,24 @@ instr_out(uint32_t *data, uint32_t hw_offset, unsigned int index,
 	  char *fmt, ...)
 {
     va_list va;
-
-    fprintf(out, "0x%08x: 0x%08x:%s ", hw_offset + index * 4, data[index],
-	    index == 0 ? "" : "  ");
+    char *parseinfo;
+    uint32_t offset = hw_offset + index * 4;
+
+    if (offset == head_offset)
+	parseinfo = "HEAD";
+    else if (offset == tail_offset)
+	parseinfo = "TAIL";
+    else
+	parseinfo = "    ";
+
+    fprintf(out, "0x%08x: %s 0x%08x: %s", offset, parseinfo,
+	    data[index],
+	    index == 0 ? "" : "   ");
     va_start(va, fmt);
     vfprintf(out, fmt, va);
     va_end(va);
 }
 
-
 static int
 decode_mi(uint32_t *data, int count, uint32_t hw_offset, int *failures)
 {
@@ -94,10 +73,11 @@ decode_mi(uint32_t *data, int count, uint32_t hw_offset, int *failures)
     } opcodes_mi[] = {
 	{ 0x08, 0, 1, 1, "MI_ARB_ON_OFF" },
 	{ 0x0a, 0, 1, 1, "MI_BATCH_BUFFER_END" },
+	{ 0x30, 0x3f, 3, 3, "MI_BATCH_BUFFER" },
 	{ 0x31, 0x3f, 2, 2, "MI_BATCH_BUFFER_START" },
 	{ 0x14, 0x3f, 3, 3, "MI_DISPLAY_BUFFER_INFO" },
 	{ 0x04, 0, 1, 1, "MI_FLUSH" },
-	{ 0x22, 0, 3, 3, "MI_LOAD_REGISTER_IMM" },
+	{ 0x22, 0x1f, 3, 3, "MI_LOAD_REGISTER_IMM" },
 	{ 0x13, 0x3f, 2, 2, "MI_LOAD_SCAN_LINES_EXCL" },
 	{ 0x12, 0x3f, 2, 2, "MI_LOAD_SCAN_LINES_INCL" },
 	{ 0x00, 0, 1, 1, "MI_NOOP" },
@@ -111,6 +91,11 @@ decode_mi(uint32_t *data, int count, uint32_t hw_offset, int *failures)
 	{ 0x03, 0, 1, 1, "MI_WAIT_FOR_EVENT" },
     };
 
+    switch ((data[0] & 0x1f800000) >> 23) {
+    case 0x0a:
+	instr_out(data, hw_offset, 0, "MI_BATCH_BUFFER_END\n");
+	return -1;
+    }
 
     for (opcode = 0; opcode < sizeof(opcodes_mi) / sizeof(opcodes_mi[0]);
 	 opcode++) {
@@ -305,9 +290,13 @@ decode_2d(uint32_t *data, int count, uint32_t hw_offset, int *failures)
 static int
 decode_3d_1c(uint32_t *data, int count, uint32_t hw_offset, int *failures)
 {
-    switch ((data[0] & 0x00f80000) >> 19) {
+    uint32_t opcode;
+
+    opcode = (data[0] & 0x00f80000) >> 19;
+
+    switch (opcode) {
     case 0x11:
-	instr_out(data, hw_offset, 0, "3DSTATE_DEPTH_SUBRECTANGLE_DISALBE\n");
+	instr_out(data, hw_offset, 0, "3DSTATE_DEPTH_SUBRECTANGLE_DISABLE\n");
 	return 1;
     case 0x10:
 	instr_out(data, hw_offset, 0, "3DSTATE_SCISSOR_ENABLE\n");
@@ -323,7 +312,8 @@ decode_3d_1c(uint32_t *data, int count, uint32_t hw_offset, int *failures)
 	return 1;
     }
 
-    instr_out(data, hw_offset, 0, "3D UNKNOWN\n");
+    instr_out(data, hw_offset, 0, "3D UNKNOWN: 3d_1c opcode = 0x%x\n",
+	      opcode);
     (*failures)++;
     return 1;
 }
@@ -381,7 +371,7 @@ i915_get_instruction_dst(uint32_t *data, int i, char *dstname, int do_mask)
 	sprintf(dstname, "oD%s%s",  dstmask, sat);
 	break;
     case 6:
-	if (dst_nr > 2)
+	if (dst_nr > 3)
 	    fprintf(out, "bad destination reg U%d\n", dst_nr);
 	sprintf(dstname, "U%d%s%s", dst_nr, dstmask, sat);
 	break;
@@ -452,7 +442,7 @@ i915_get_instruction_src_name(uint32_t src_type, uint32_t src_nr, char *name)
 	break;
     case 6:
 	sprintf(name, "U%d", src_nr);
-	if (src_nr > 2)
+	if (src_nr > 3)
 	    fprintf(out, "bad src reg %s\n", name);
 	break;
     default:
@@ -797,10 +787,14 @@ i915_decode_instruction(uint32_t *data, uint32_t hw_offset,
 }
 
 static int
-decode_3d_1d(uint32_t *data, int count, uint32_t hw_offset, int *failures, int i830)
+decode_3d_1d(uint32_t *data, int count,
+	     uint32_t hw_offset,
+	     uint32_t devid,
+	     int *failures)
 {
-    unsigned int len, i, c, opcode, word, map, sampler, instr;
+    unsigned int len, i, c, idx, word, map, sampler, instr;
     char *format;
+    uint32_t opcode;
 
     struct {
 	uint32_t opcode;
@@ -811,7 +805,7 @@ decode_3d_1d(uint32_t *data, int count, uint32_t hw_offset, int *failures, int i
     } opcodes_3d_1d[] = {
 	{ 0x8e, 0, 3, 3, "3DSTATE_BUFFER_INFO" },
 	{ 0x86, 0, 4, 4, "3DSTATE_CHROMA_KEY" },
-	{ 0x9c, 0, 1, 1, "3DSTATE_CLEAR_PARAMETERS" },
+	{ 0x9c, 0, 7, 7, "3DSTATE_CLEAR_PARAMETERS" },
 	{ 0x88, 0, 2, 2, "3DSTATE_CONSTANT_BLEND_COLOR" },
 	{ 0x99, 0, 2, 2, "3DSTATE_DEFAULT_DIFFUSE" },
 	{ 0x9a, 0, 2, 2, "3DSTATE_DEFAULT_SPECULAR" },
@@ -819,7 +813,6 @@ decode_3d_1d(uint32_t *data, int count, uint32_t hw_offset, int *failures, int i
 	{ 0x97, 0, 2, 2, "3DSTATE_DEPTH_OFFSET_SCALE" },
 	{ 0x85, 0, 2, 2, "3DSTATE_DEST_BUFFER_VARIABLES" },
 	{ 0x80, 0, 5, 5, "3DSTATE_DRAWING_RECTANGLE" },
-	{ 0x8e, 0, 3, 3, "3DSTATE_BUFFER_INFO" },
 	{ 0x9d, 0, 65, 65, "3DSTATE_FILTER_COEFFICIENTS_4X4" },
 	{ 0x9e, 0, 4, 4, "3DSTATE_MONO_FILTER" },
 	{ 0x89, 0, 4, 4, "3DSTATE_FOG_MODE" },
@@ -831,9 +824,11 @@ decode_3d_1d(uint32_t *data, int count, uint32_t hw_offset, int *failures, int i
 	{ 0x8d, 1, 3, 3, "3DSTATE_W_STATE_I830" },
 	{ 0x01, 1, 2, 2, "3DSTATE_COLOR_FACTOR_I830" },
 	{ 0x02, 1, 2, 2, "3DSTATE_MAP_COORD_SETBIND_I830" },
-    };
+    }, *opcode_3d_1d;
+
+    opcode = (data[0] & 0x00ff0000) >> 16;
 
-    switch ((data[0] & 0x00ff0000) >> 16) {
+    switch (opcode) {
     case 0x07:
 	/* This instruction is unusual.  A 0 length means just 1 DWORD instead of
 	 * 2.  The 0 length is specified in one place to be unsupported, but
@@ -888,26 +883,56 @@ decode_3d_1d(uint32_t *data, int count, uint32_t hw_offset, int *failures, int i
 	instr_out(data, hw_offset, 0, "3DSTATE_LOAD_STATE_IMMEDIATE_1\n");
 	len = (data[0] & 0x0000000f) + 2;
 	i = 1;
-	for (word = 0; word <= 7; word++) {
+	for (word = 0; word <= 8; word++) {
 	    if (data[0] & (1 << (4 + word))) {
 		if (i >= count)
 		    BUFFER_FAIL(count, len, "3DSTATE_LOAD_STATE_IMMEDIATE_1");
 
 		/* save vertex state for decode */
-		if (word == 2) {
-		    saved_s2_set = 1;
-		    saved_s2 = data[i];
-		}
-		if (word == 4) {
-		    saved_s4_set = 1;
-		    saved_s4 = data[i];
+		if (IS_9XX(devid)) {
+		    if (word == 2) {
+			saved_s2_set = 1;
+			saved_s2 = data[i];
+		    }
+		    if (word == 4) {
+			saved_s4_set = 1;
+			saved_s4 = data[i];
+		    }
 		}
 
 		instr_out(data, hw_offset, i++, "S%d\n", word);
 	    }
 	}
 	if (len != i) {
-	    fprintf(out, "Bad count in 3DSTATE_LOAD_INDIRECT\n");
+	    fprintf(out, "Bad count in 3DSTATE_LOAD_STATE_IMMEDIATE_1\n");
+	    (*failures)++;
+	}
+	return len;
+    case 0x03:
+	instr_out(data, hw_offset, 0, "3DSTATE_LOAD_STATE_IMMEDIATE_2\n");
+	len = (data[0] & 0x0000000f) + 2;
+	i = 1;
+	for (word = 6; word <= 14; word++) {
+	    if (data[0] & (1 << word)) {
+		if (i >= count)
+		    BUFFER_FAIL(count, len, "3DSTATE_LOAD_STATE_IMMEDIATE_2");
+
+		if (word == 6)
+		    instr_out(data, hw_offset, i++, "TBCF\n");
+		else if (word >= 7 && word <= 10) {
+		    instr_out(data, hw_offset, i++, "TB%dC\n", word - 7);
+		    instr_out(data, hw_offset, i++, "TB%dA\n", word - 7);
+		} else if (word >= 11 && word <= 14) {
+		    instr_out(data, hw_offset, i++, "TM%dS0\n", word - 11);
+		    instr_out(data, hw_offset, i++, "TM%dS1\n", word - 11);
+		    instr_out(data, hw_offset, i++, "TM%dS2\n", word - 11);
+		    instr_out(data, hw_offset, i++, "TM%dS3\n", word - 11);
+		    instr_out(data, hw_offset, i++, "TM%dS4\n", word - 11);
+		}
+	    }
+	}
+	if (len != i) {
+	    fprintf(out, "Bad count in 3DSTATE_LOAD_STATE_IMMEDIATE_2\n");
 	    (*failures)++;
 	}
 	return len;
@@ -919,11 +944,28 @@ decode_3d_1d(uint32_t *data, int count, uint32_t hw_offset, int *failures, int i
 	i = 2;
 	for (map = 0; map <= 15; map++) {
 	    if (data[1] & (1 << map)) {
+		int width, height, pitch, dword;
+		const char *tiling;
+
 		if (i + 3 >= count)
 		    BUFFER_FAIL(count, len, "3DSTATE_MAP_STATE");
+
 		instr_out(data, hw_offset, i++, "map %d MS2\n", map);
-		instr_out(data, hw_offset, i++, "map %d MS3\n", map);
-		instr_out(data, hw_offset, i++, "map %d MS4\n", map);
+
+		dword = data[i];
+		width = ((dword >> 10) & ((1 << 11) - 1))+1;
+		height = ((dword >> 21) & ((1 << 11) - 1))+1;
+
+		tiling = "none";
+		if (dword & (1 << 2))
+			tiling = "fenced";
+		else if (dword & (1 << 1))
+			tiling = dword & (1 << 0) ? "Y" : "X";
+		instr_out(data, hw_offset, i++, "map %d MS3 [width=%d, height=%d, tiling=%s]\n", map, width, height, tiling);
+
+		dword = data[i];
+		pitch = 4*(((dword >> 21) & ((1 << 11) - 1))+1);
+		instr_out(data, hw_offset, i++, "map %d MS4 [pitch=%d]\n", map, pitch);
 	    }
 	}
 	if (len != i) {
@@ -979,8 +1021,8 @@ decode_3d_1d(uint32_t *data, int count, uint32_t hw_offset, int *failures, int i
 	}
 	return len;
     case 0x01:
-	if (i830)
-	    break;
+	if (!IS_9XX(devid))
+		break;
 	instr_out(data, hw_offset, 0, "3DSTATE_SAMPLER_STATE\n");
 	instr_out(data, hw_offset, 1, "mask\n");
 	len = (data[0] & 0x0000003f) + 2;
@@ -1031,32 +1073,61 @@ decode_3d_1d(uint32_t *data, int count, uint32_t hw_offset, int *failures, int i
 		  format,
 		  (data[1] & (1 << 31)) ? "en" : "dis");
 	return len;
+
+    case 0x8e:
+	{
+	    const char *name, *tiling;
+
+	    len = (data[0] & 0x0000000f) + 2;
+	    if (len != 3)
+		fprintf(out, "Bad count in 3DSTATE_BUFFER_INFO\n");
+	    if (count < 3)
+		BUFFER_FAIL(count, len, "3DSTATE_BUFFER_INFO");
+
+	    switch((data[1] >> 24) & 0x7) {
+	    case 0x3: name = "color"; break;
+	    case 0x7: name = "depth"; break;
+	    default: name = "unknown"; break;
+	    }
+
+	    tiling = "none";
+	    if (data[1] & (1 << 23))
+		tiling = "fenced";
+	    else if (data[1] & (1 << 22))
+		tiling = data[1] & (1 << 21) ? "Y" : "X";
+
+	    instr_out(data, hw_offset, 0, "3DSTATE_BUFFER_INFO\n");
+	    instr_out(data, hw_offset, 1, "%s, tiling = %s, pitch=%d\n", name, tiling, data[1]&0xffff);
+
+	    instr_out(data, hw_offset, 2, "address\n");
+	    return len;
+	}
     }
 
-    for (opcode = 0; opcode < sizeof(opcodes_3d_1d) / sizeof(opcodes_3d_1d[0]);
-	 opcode++)
+    for (idx = 0; idx < ARRAY_SIZE(opcodes_3d_1d); idx++)
     {
-	if (opcodes_3d_1d[opcode].i830_only && !i830)
+	opcode_3d_1d = &opcodes_3d_1d[idx];
+	if (opcode_3d_1d->i830_only && IS_9XX(devid))
 	    continue;
 
-	if (((data[0] & 0x00ff0000) >> 16) == opcodes_3d_1d[opcode].opcode) {
+	if (((data[0] & 0x00ff0000) >> 16) == opcode_3d_1d->opcode) {
 	    len = 1;
 
-	    instr_out(data, hw_offset, 0, "%s\n", opcodes_3d_1d[opcode].name);
-	    if (opcodes_3d_1d[opcode].max_len > 1) {
+	    instr_out(data, hw_offset, 0, "%s\n", opcode_3d_1d->name);
+	    if (opcode_3d_1d->max_len > 1) {
 		len = (data[0] & 0x0000ffff) + 2;
-		if (len < opcodes_3d_1d[opcode].min_len ||
-		    len > opcodes_3d_1d[opcode].max_len)
+		if (len < opcode_3d_1d->min_len ||
+		    len > opcode_3d_1d->max_len)
 		{
 		    fprintf(out, "Bad count in %s\n",
-			    opcodes_3d_1d[opcode].name);
+			    opcode_3d_1d->name);
 		    (*failures)++;
 		}
 	    }
 
 	    for (i = 1; i < len; i++) {
 		if (i >= count)
-		    BUFFER_FAIL(count, len,  opcodes_3d_1d[opcode].name);
+		    BUFFER_FAIL(count, len,  opcode_3d_1d->name);
 		instr_out(data, hw_offset, i, "dword %d\n", i);
 	    }
 
@@ -1064,7 +1135,7 @@ decode_3d_1d(uint32_t *data, int count, uint32_t hw_offset, int *failures, int i
 	}
     }
 
-    instr_out(data, hw_offset, 0, "3D UNKNOWN\n");
+    instr_out(data, hw_offset, 0, "3D UNKNOWN: 3d_1d opcode = 0x%x\n", opcode);
     (*failures)++;
     return 1;
 }
@@ -1074,8 +1145,10 @@ decode_3d_primitive(uint32_t *data, int count, uint32_t hw_offset,
 		    int *failures)
 {
     char immediate = (data[0] & (1 << 23)) == 0;
-    unsigned int len, i;
+    unsigned int len, i, ret;
     char *primtype;
+    int original_s2 = saved_s2;
+    int original_s4 = saved_s4;
 
     switch ((data[0] >> 18) & 0xf) {
     case 0x0: primtype = "TRILIST"; break;
@@ -1088,7 +1161,7 @@ decode_3d_primitive(uint32_t *data, int count, uint32_t hw_offset,
     case 0x7: primtype = "RECTLIST"; break;
     case 0x8: primtype = "POINTLIST"; break;
     case 0x9: primtype = "DIB"; break;
-    case 0xa: primtype = "CLEAR_RECT"; break;
+    case 0xa: primtype = "CLEAR_RECT"; saved_s4 = 3 << 6; saved_s2 = ~0; break;
     default: primtype = "unknown"; break;
     }
 
@@ -1192,6 +1265,8 @@ decode_3d_primitive(uint32_t *data, int count, uint32_t hw_offset,
 		vertex++;
 	    }
 	}
+
+	ret = len;
     } else {
 	/* indirect vertices */
 	len = data[0] & 0x0000ffff; /* index count */
@@ -1209,13 +1284,15 @@ decode_3d_primitive(uint32_t *data, int count, uint32_t hw_offset,
 		    if ((data[i] & 0xffff) == 0xffff) {
 			instr_out(data, hw_offset, i,
 				  "            indices: (terminator)\n");
-			return i;
+			ret = i;
+			goto out;
 		    } else if ((data[i] >> 16) == 0xffff) {
 			instr_out(data, hw_offset, i,
 				  "            indices: 0x%04x, "
 				  "(terminator)\n",
 				  data[i] & 0xffff);
-			return i;
+			ret = i;
+			goto out;
 		    } else {
 			instr_out(data, hw_offset, i,
 				  "            indices: 0x%04x, 0x%04x\n",
@@ -1225,7 +1302,8 @@ decode_3d_primitive(uint32_t *data, int count, uint32_t hw_offset,
 		fprintf(out,
 			"3DPRIMITIVE: no terminator found in index buffer\n");
 		(*failures)++;
-		return count;
+		ret = count;
+		goto out;
 	    } else {
 		/* fixed size vertex index buffer */
 		for (i = 0; i < len; i += 2) {
@@ -1240,7 +1318,8 @@ decode_3d_primitive(uint32_t *data, int count, uint32_t hw_offset,
 		    }
 		}
 	    }
-	    return (len + 1) / 2 + 1;
+	    ret = (len + 1) / 2 + 1;
+	    goto out;
 	} else {
 	    /* sequential vertex access */
 	    if (count < 2)
@@ -1249,17 +1328,22 @@ decode_3d_primitive(uint32_t *data, int count, uint32_t hw_offset,
 		      "3DPRIMITIVE sequential indirect %s, %d starting from "
 		      "%d\n", primtype, len, data[1] & 0xffff);
 	    instr_out(data, hw_offset, 1, "           start\n");
-	    return 2;
+	    ret = 2;
+	    goto out;
 	}
     }
 
-    return len;
+out:
+    saved_s2 = original_s2;
+    saved_s4 = original_s4;
+    return ret;
 }
 
 static int
-decode_3d(uint32_t *data, int count, uint32_t hw_offset, int *failures)
+decode_3d(uint32_t *data, int count, uint32_t hw_offset, uint32_t devid, int *failures)
 {
-    unsigned int opcode;
+    uint32_t opcode;
+    unsigned int idx;
 
     struct {
 	uint32_t opcode;
@@ -1276,42 +1360,44 @@ decode_3d(uint32_t *data, int count, uint32_t hw_offset, int *failures)
 	{ 0x0d, 1, 1, "3DSTATE_MODES_4" },
 	{ 0x0c, 1, 1, "3DSTATE_MODES_5" },
 	{ 0x07, 1, 1, "3DSTATE_RASTERIZATION_RULES" },
-    };
+    }, *opcode_3d;
+
+    opcode = (data[0] & 0x1f000000) >> 24;
 
-    switch ((data[0] & 0x1f000000) >> 24) {
+    switch (opcode) {
     case 0x1f:
 	return decode_3d_primitive(data, count, hw_offset, failures);
     case 0x1d:
-	return decode_3d_1d(data, count, hw_offset, failures, 0);
+	return decode_3d_1d(data, count, hw_offset, devid, failures);
     case 0x1c:
 	return decode_3d_1c(data, count, hw_offset, failures);
     }
 
-    for (opcode = 0; opcode < sizeof(opcodes_3d) / sizeof(opcodes_3d[0]);
-	 opcode++) {
-	if ((data[0] & 0x1f000000) >> 24 == opcodes_3d[opcode].opcode) {
+    for (idx = 0; idx < ARRAY_SIZE(opcodes_3d); idx++) {
+	opcode_3d = &opcodes_3d[idx];
+	if (opcode == opcode_3d->opcode) {
 	    unsigned int len = 1, i;
 
-	    instr_out(data, hw_offset, 0, "%s\n", opcodes_3d[opcode].name);
-	    if (opcodes_3d[opcode].max_len > 1) {
+	    instr_out(data, hw_offset, 0, "%s\n", opcode_3d->name);
+	    if (opcode_3d->max_len > 1) {
 		len = (data[0] & 0xff) + 2;
-		if (len < opcodes_3d[opcode].min_len ||
-		    len > opcodes_3d[opcode].max_len)
+		if (len < opcode_3d->min_len ||
+		    len > opcode_3d->max_len)
 		{
-		    fprintf(out, "Bad count in %s\n", opcodes_3d[opcode].name);
+		    fprintf(out, "Bad count in %s\n", opcode_3d->name);
 		}
 	    }
 
 	    for (i = 1; i < len; i++) {
 		if (i >= count)
-		    BUFFER_FAIL(count, len, opcodes_3d[opcode].name);
+		    BUFFER_FAIL(count, len, opcode_3d->name);
 		instr_out(data, hw_offset, i, "dword %d\n", i);
 	    }
 	    return len;
 	}
     }
 
-    instr_out(data, hw_offset, 0, "3D UNKNOWN\n");
+    instr_out(data, hw_offset, 0, "3D UNKNOWN: 3d opcode = 0x%x\n", opcode);
     (*failures)++;
     return 1;
 }
@@ -1403,11 +1489,86 @@ get_965_prim_type(uint32_t data)
 }
 
 static int
-decode_3d_965(uint32_t *data, int count, uint32_t hw_offset, int *failures)
+i965_decode_urb_fence(uint32_t *data, uint32_t hw_offset, int len, int count,
+		      int *failures)
 {
-    unsigned int opcode, len;
-    int i;
-    char *desc1;
+	uint32_t vs_fence, clip_fence, gs_fence, sf_fence, vfe_fence, cs_fence;
+
+	if (len != 3)
+	    fprintf(out, "Bad count in URB_FENCE\n");
+	if (count < 3)
+	    BUFFER_FAIL(count, len, "URB_FENCE");
+
+	vs_fence = data[1] & 0x3ff;
+	gs_fence = (data[1] >> 10) & 0x3ff;
+	clip_fence = (data[1] >> 20) & 0x3ff;
+	sf_fence = data[2] & 0x3ff;
+	vfe_fence = (data[2] >> 10) & 0x3ff;
+	cs_fence = (data[2] >> 20) & 0x7ff;
+
+	instr_out(data, hw_offset, 0, "URB_FENCE: %s%s%s%s%s%s\n",
+			(data[0] >> 13) & 1 ? "cs " : "",
+			(data[0] >> 12) & 1 ? "vfe " : "",
+			(data[0] >> 11) & 1 ? "sf " : "",
+			(data[0] >> 10) & 1 ? "clip " : "",
+			(data[0] >> 9)  & 1 ? "gs " : "",
+			(data[0] >> 8)  & 1 ? "vs " : "");
+	instr_out(data, hw_offset, 1,
+		  "vs fence: %d, clip_fence: %d, gs_fence: %d\n",
+		  vs_fence, clip_fence, gs_fence);
+	instr_out(data, hw_offset, 2,
+		  "sf fence: %d, vfe_fence: %d, cs_fence: %d\n",
+		  sf_fence, vfe_fence, cs_fence);
+	if (gs_fence < vs_fence)
+	    fprintf(out, "gs fence < vs fence!\n");
+	if (clip_fence < gs_fence)
+	    fprintf(out, "clip fence < gs fence!\n");
+	if (sf_fence < clip_fence)
+	    fprintf(out, "sf fence < clip fence!\n");
+	if (cs_fence < sf_fence)
+	    fprintf(out, "cs fence < sf fence!\n");
+
+	return len;
+}
+
+static void
+state_base_out(uint32_t *data, uint32_t hw_offset, unsigned int index,
+	       char *name)
+{
+    if (data[index] & 1) {
+	instr_out(data, hw_offset, index, "%s state base address 0x%08x\n",
+		  name, data[index] & ~1);
+    } else {
+	instr_out(data, hw_offset, index, "%s state base not updated\n",
+		  name);
+    }
+}
+
+static void
+state_max_out(uint32_t *data, uint32_t hw_offset, unsigned int index,
+	      char *name)
+{
+    if (data[index] & 1) {
+	if (data[index] == 1) {
+	    instr_out(data, hw_offset, index,
+		      "%s state upper bound disabled\n", name);
+	} else {
+	    instr_out(data, hw_offset, index, "%s state upper bound 0x%08x\n",
+		      name, data[index] & ~1);
+	}
+    } else {
+	instr_out(data, hw_offset, index, "%s state upper bound not updated\n",
+		  name);
+    }
+}
+
+static int
+decode_3d_965(uint32_t *data, int count, uint32_t hw_offset, uint32_t devid, int *failures)
+{
+    uint32_t opcode;
+    unsigned int idx, len;
+    int i, sba_len;
+    char *desc1 = NULL;
 
     struct {
 	uint32_t opcode;
@@ -1436,57 +1597,78 @@ decode_3d_965(uint32_t *data, int count, uint32_t hw_offset, int *failures)
 	{ 0x7907, 33, 33, "3DSTATE_POLY_STIPPLE_PATTERN" },
 	{ 0x7908, 3, 3, "3DSTATE_LINE_STIPPLE" },
 	{ 0x7909, 2, 2, "3DSTATE_GLOBAL_DEPTH_OFFSET_CLAMP" },
+	{ 0x7909, 2, 2, "3DSTATE_CLEAR_PARAMS" },
 	{ 0x790a, 3, 3, "3DSTATE_AA_LINE_PARAMETERS" },
+	{ 0x790b, 4, 4, "3DSTATE_GS_SVB_INDEX" },
+	{ 0x790d, 3, 3, "3DSTATE_MULTISAMPLE" },
 	{ 0x7b00, 6, 6, "3DPRIMITIVE" },
+	{ 0x7802, 4, 4, "3DSTATE_SAMPLER_STATE_POINTERS" },
+	{ 0x7805, 3, 3, "3DSTATE_URB" },
 	{ 0x780e, 4, 4, "3DSTATE_CC_STATE_POINTERS" },
 	{ 0x7810, 6, 6, "3DSTATE_VS_STATE" },
-	{ 0x7811, 6, 6, "3DSTATE_GS_STATE" },
+	{ 0x7811, 7, 7, "3DSTATE_GS_STATE" },
+	{ 0x7812, 4, 4, "3DSTATE_CLIP_STATE" },
+	{ 0x7813, 20, 20, "3DSTATE_SF_STATE" },
+	{ 0x7814, 9, 9, "3DSTATE_WM_STATE" },
 	{ 0x7812, 4, 4, "3DSTATE_CLIP_STATE" },
 	{ 0x7815, 5, 5, "3DSTATE_CONSTANT_VS_STATE" },
 	{ 0x7816, 5, 5, "3DSTATE_CONSTANT_GS_STATE" },
-    };
+	{ 0x7817, 5, 5, "3DSTATE_CONSTANT_PS_STATE" },
+	{ 0x7818, 2, 2, "3DSTATE_SAMPLE_MASK" },
+   }, *opcode_3d;
 
     len = (data[0] & 0x0000ffff) + 2;
 
-    switch ((data[0] & 0xffff0000) >> 16) {
+    opcode = (data[0] & 0xffff0000) >> 16;
+    switch (opcode) {
+    case 0x6000:
+	len = (data[0] & 0x000000ff) + 2;
+	return i965_decode_urb_fence(data, hw_offset, len, count, failures);
+    case 0x6001:
+	instr_out(data, hw_offset, 0, "CS_URB_STATE\n");
+	instr_out(data, hw_offset, 1, "entry_size: %d [%d bytes], n_entries: %d\n",
+			(data[1] >> 4) & 0x1f,
+			(((data[1] >> 4) & 0x1f) + 1) * 64,
+			data[1] & 0x7);
+	return len;
+    case 0x6002:
+	len = (data[0] & 0x000000ff) + 2;
+	instr_out(data, hw_offset, 0, "CONSTANT_BUFFER: %s\n",
+			(data[0] >> 8) & 1 ? "valid" : "invalid");
+	instr_out(data, hw_offset, 1, "offset: 0x%08x, length: %d bytes\n",
+			data[1] & ~0x3f, ((data[1] & 0x3f) + 1) * 64);
+	return len;
     case 0x6101:
-	if (len != 6)
+	if (IS_GEN6(devid))
+	    sba_len = 10;
+	else if (IS_IRONLAKE(devid))
+	    sba_len = 8;
+	else
+	    sba_len = 6;
+	if (len != sba_len)
 	    fprintf(out, "Bad count in STATE_BASE_ADDRESS\n");
-	if (count < 6)
+	if (len != sba_len)
 	    BUFFER_FAIL(count, len, "STATE_BASE_ADDRESS");
 
+	i = 0;
 	instr_out(data, hw_offset, 0,
 		  "STATE_BASE_ADDRESS\n");
-
-	if (data[1] & 1) {
-	    instr_out(data, hw_offset, 1, "General state at 0x%08x\n",
-		      data[1] & ~1);
-	} else
-	    instr_out(data, hw_offset, 1, "General state not updated\n");
-
-	if (data[2] & 1) {
-	    instr_out(data, hw_offset, 2, "Surface state at 0x%08x\n",
-		      data[2] & ~1);
-	} else
-	    instr_out(data, hw_offset, 2, "Surface state not updated\n");
-
-	if (data[3] & 1) {
-	    instr_out(data, hw_offset, 3, "Indirect state at 0x%08x\n",
-		      data[3] & ~1);
-	} else
-	    instr_out(data, hw_offset, 3, "Indirect state not updated\n");
-
-	if (data[4] & 1) {
-	    instr_out(data, hw_offset, 4, "General state upper bound 0x%08x\n",
-		      data[4] & ~1);
-	} else
-	    instr_out(data, hw_offset, 4, "General state not updated\n");
-
-	if (data[5] & 1) {
-	    instr_out(data, hw_offset, 5, "Indirect state upper bound 0x%08x\n",
-		      data[5] & ~1);
-	} else
-	    instr_out(data, hw_offset, 5, "Indirect state not updated\n");
+	i++;
+
+	state_base_out(data, hw_offset, i++, "general");
+	state_base_out(data, hw_offset, i++, "surface");
+	if (IS_GEN6(devid))
+	    state_base_out(data, hw_offset, i++, "dynamic");
+	state_base_out(data, hw_offset, i++, "indirect");
+	if (IS_IRONLAKE(devid) || IS_GEN6(devid))
+	    state_base_out(data, hw_offset, i++, "instruction");
+
+	state_max_out(data, hw_offset, i++, "general");
+	if (IS_GEN6(devid))
+	    state_max_out(data, hw_offset, i++, "dynamic");
+	state_max_out(data, hw_offset, i++, "indirect");
+	if (IS_IRONLAKE(devid) || IS_GEN6(devid))
+	    state_max_out(data, hw_offset, i++, "instruction");
 
 	return len;
     case 0x7800:
@@ -1505,18 +1687,33 @@ decode_3d_965(uint32_t *data, int count, uint32_t hw_offset, int *failures)
 	instr_out(data, hw_offset, 6, "CC state\n");
 	return len;
     case 0x7801:
-	if (len != 6)
+	len = (data[0] & 0x000000ff) + 2;
+	if (len != 6 && len != 4)
 	    fprintf(out, "Bad count in 3DSTATE_BINDING_TABLE_POINTERS\n");
-	if (count < 6)
-	    BUFFER_FAIL(count, len, "3DSTATE_BINDING_TABLE_POINTERS");
+	if (len == 6) {
+	    if (count < 6)
+		BUFFER_FAIL(count, len, "3DSTATE_BINDING_TABLE_POINTERS");
+	    instr_out(data, hw_offset, 0,
+		      "3DSTATE_BINDING_TABLE_POINTERS\n");
+	    instr_out(data, hw_offset, 1, "VS binding table\n");
+	    instr_out(data, hw_offset, 2, "GS binding table\n");
+	    instr_out(data, hw_offset, 3, "Clip binding table\n");
+	    instr_out(data, hw_offset, 4, "SF binding table\n");
+	    instr_out(data, hw_offset, 5, "WM binding table\n");
+	} else {
+	    if (count < 4)
+		BUFFER_FAIL(count, len, "3DSTATE_BINDING_TABLE_POINTERS");
 
-	instr_out(data, hw_offset, 0,
-		  "3DSTATE_BINDING_TABLE_POINTERS\n");
-	instr_out(data, hw_offset, 1, "VS binding table\n");
-	instr_out(data, hw_offset, 2, "GS binding table\n");
-	instr_out(data, hw_offset, 3, "Clip binding table\n");
-	instr_out(data, hw_offset, 4, "SF binding table\n");
-	instr_out(data, hw_offset, 5, "WM binding table\n");
+	    instr_out(data, hw_offset, 0,
+		      "3DSTATE_BINDING_TABLE_POINTERS: VS mod %d, "
+		      "GS mod %d, PS mod %d\n",
+		      (data[0] & (1 << 8)) != 0,
+		      (data[0] & (1 << 9)) != 0,
+		      (data[0] & (1 << 10)) != 0);
+	    instr_out(data, hw_offset, 1, "VS binding table\n");
+	    instr_out(data, hw_offset, 2, "GS binding table\n");
+	    instr_out(data, hw_offset, 3, "WM binding table\n");
+	}
 
 	return len;
 
@@ -1567,6 +1764,18 @@ decode_3d_965(uint32_t *data, int count, uint32_t hw_offset, int *failures)
 	}
 	return len;
 
+    case 0x780d:
+	len = (data[0] & 0xff) + 2;
+	if (len != 4)
+	    fprintf(out, "Bad count in 3DSTATE_VIEWPORT_STATE_POINTERS\n");
+	if (count < len)
+	    BUFFER_FAIL(count, len, "3DSTATE_VIEWPORT_STATE_POINTERS");
+	instr_out(data, hw_offset, 0, "3DSTATE_VIEWPORT_STATE_POINTERS\n");
+	instr_out(data, hw_offset, 1, "clip\n");
+	instr_out(data, hw_offset, 2, "sf\n");
+	instr_out(data, hw_offset, 3, "cc\n");
+	return len;
+
     case 0x780a:
 	len = (data[0] & 0xff) + 2;
 	if (len != 3)
@@ -1616,10 +1825,10 @@ decode_3d_965(uint32_t *data, int count, uint32_t hw_offset, int *failures)
 		  ((data[3] & 0x0007ffc0) >> 6) + 1,
 		  ((data[3] & 0xfff80000) >> 19) + 1);
 	instr_out(data, hw_offset, 4, "volume depth\n");
-	if (len == 6)
+	if (len >= 6)
 	    instr_out(data, hw_offset, 5, "\n");
-	if (len == 7)
-	    instr_out(data, hw_offset, 6, "render target view extent\n");
+       if (len >= 7)
+           instr_out(data, hw_offset, 6, "render target view extent\n");
 
 	return len;
 
@@ -1638,12 +1847,11 @@ decode_3d_965(uint32_t *data, int count, uint32_t hw_offset, int *failures)
 	}
 	instr_out(data, hw_offset, 0,
 		  "PIPE_CONTROL: %s, %sdepth stall, %sRC write flush, "
-		  "%sinst flush, %stexture flush\n",
+		  "%sinst flush\n",
 		  desc1,
 		  data[0] & (1 << 13) ? "" : "no ",
 		  data[0] & (1 << 12) ? "" : "no ",
-		  data[0] & (1 << 11) ? "" : "no ",
-		  data[0] & (1 << 9) ? "" : "no ");
+		  data[0] & (1 << 11) ? "" : "no ");
 	instr_out(data, hw_offset, 1, "destination address\n");
 	instr_out(data, hw_offset, 2, "immediate dword low\n");
 	instr_out(data, hw_offset, 3, "immediate dword high\n");
@@ -1668,40 +1876,41 @@ decode_3d_965(uint32_t *data, int count, uint32_t hw_offset, int *failures)
 	return len;
     }
 
-    for (opcode = 0; opcode < sizeof(opcodes_3d) / sizeof(opcodes_3d[0]);
-	 opcode++) {
-	if ((data[0] & 0xffff0000) >> 16 == opcodes_3d[opcode].opcode) {
+    for (idx = 0; idx < ARRAY_SIZE(opcodes_3d); idx++) {
+	opcode_3d = &opcodes_3d[idx];
+	if ((data[0] & 0xffff0000) >> 16 == opcode_3d->opcode) {
 	    unsigned int i;
 	    len = 1;
 
-	    instr_out(data, hw_offset, 0, "%s\n", opcodes_3d[opcode].name);
-	    if (opcodes_3d[opcode].max_len > 1) {
+	    instr_out(data, hw_offset, 0, "%s\n", opcode_3d->name);
+	    if (opcode_3d->max_len > 1) {
 		len = (data[0] & 0xff) + 2;
-		if (len < opcodes_3d[opcode].min_len ||
-		    len > opcodes_3d[opcode].max_len)
+		if (len < opcode_3d->min_len ||
+		    len > opcode_3d->max_len)
 		{
-		    fprintf(out, "Bad count in %s\n", opcodes_3d[opcode].name);
+		    fprintf(out, "Bad count in %s\n", opcode_3d->name);
 		}
 	    }
 
 	    for (i = 1; i < len; i++) {
 		if (i >= count)
-		    BUFFER_FAIL(count, len, opcodes_3d[opcode].name);
+		    BUFFER_FAIL(count, len, opcode_3d->name);
 		instr_out(data, hw_offset, i, "dword %d\n", i);
 	    }
 	    return len;
 	}
     }
 
-    instr_out(data, hw_offset, 0, "3D UNKNOWN\n");
+    instr_out(data, hw_offset, 0, "3D UNKNOWN: 3d_965 opcode = 0x%x\n", opcode);
     (*failures)++;
     return 1;
 }
 
 static int
-decode_3d_i830(uint32_t *data, int count, uint32_t hw_offset, int *failures)
+decode_3d_i830(uint32_t *data, int count, uint32_t hw_offset, uint32_t devid, int *failures)
 {
-    unsigned int opcode;
+    unsigned int idx;
+    uint32_t opcode;
 
     struct {
 	uint32_t opcode;
@@ -1725,42 +1934,44 @@ decode_3d_i830(uint32_t *data, int count, uint32_t hw_offset, int *failures)
 	{ 0x0f, 1, 1, "3DSTATE_MODES_2" },
 	{ 0x15, 1, 1, "3DSTATE_FOG_COLOR" },
 	{ 0x16, 1, 1, "3DSTATE_MODES_4" },
-    };
+    }, *opcode_3d;
 
-    switch ((data[0] & 0x1f000000) >> 24) {
+    opcode = (data[0] & 0x1f000000) >> 24;
+
+    switch (opcode) {
     case 0x1f:
 	return decode_3d_primitive(data, count, hw_offset, failures);
     case 0x1d:
-	return decode_3d_1d(data, count, hw_offset, failures, 1);
+	return decode_3d_1d(data, count, hw_offset, devid, failures);
     case 0x1c:
 	return decode_3d_1c(data, count, hw_offset, failures);
     }
 
-    for (opcode = 0; opcode < sizeof(opcodes_3d) / sizeof(opcodes_3d[0]);
-	 opcode++) {
-	if ((data[0] & 0x1f000000) >> 24 == opcodes_3d[opcode].opcode) {
+    for (idx = 0; idx < ARRAY_SIZE(opcodes_3d); idx++) {
+	opcode_3d = &opcodes_3d[idx];
+	if ((data[0] & 0x1f000000) >> 24 == opcode_3d->opcode) {
 	    unsigned int len = 1, i;
 
-	    instr_out(data, hw_offset, 0, "%s\n", opcodes_3d[opcode].name);
-	    if (opcodes_3d[opcode].max_len > 1) {
+	    instr_out(data, hw_offset, 0, "%s\n", opcode_3d->name);
+	    if (opcode_3d->max_len > 1) {
 		len = (data[0] & 0xff) + 2;
-		if (len < opcodes_3d[opcode].min_len ||
-		    len > opcodes_3d[opcode].max_len)
+		if (len < opcode_3d->min_len ||
+		    len > opcode_3d->max_len)
 		{
-		    fprintf(out, "Bad count in %s\n", opcodes_3d[opcode].name);
+		    fprintf(out, "Bad count in %s\n", opcode_3d->name);
 		}
 	    }
 
 	    for (i = 1; i < len; i++) {
 		if (i >= count)
-		    BUFFER_FAIL(count, len, opcodes_3d[opcode].name);
+		    BUFFER_FAIL(count, len, opcode_3d->name);
 		instr_out(data, hw_offset, i, "dword %d\n", i);
 	    }
 	    return len;
 	}
     }
 
-    instr_out(data, hw_offset, 0, "3D UNKNOWN\n");
+    instr_out(data, hw_offset, 0, "3D UNKNOWN: 3d_i830 opcode = 0x%x\n", opcode);
     (*failures)++;
     return 1;
 }
@@ -1773,18 +1984,37 @@ decode_3d_i830(uint32_t *data, int count, uint32_t hw_offset, int *failures)
  * \param hw_offset hardware address for the buffer
  */
 int
-intel_decode(uint32_t *data, int count, uint32_t hw_offset, uint32_t devid)
+intel_decode(uint32_t *data, int count,
+	     uint32_t hw_offset,
+	     uint32_t devid,
+	     uint32_t ignore_end_of_batchbuffer)
 {
+    int ret;
     int index = 0;
     int failures = 0;
 
-    out = stderr;
+    out = stdout;
 
     while (index < count) {
 	switch ((data[index] & 0xe0000000) >> 29) {
 	case 0x0:
-	    index += decode_mi(data + index, count - index,
+	    ret = decode_mi(data + index, count - index,
 			       hw_offset + index * 4, &failures);
+
+	    /* If MI_BATCHBUFFER_END happened, then dump the rest of the
+	     * output in case we some day want it in debugging, but don't
+	     * decode it since it'll just confuse in the common case.
+	     */
+	    if (ret == -1) {
+		if (ignore_end_of_batchbuffer) {
+		    index++;
+		} else {
+		    for (index = index + 1; index < count; index++) {
+			instr_out(data, hw_offset, index, "\n");
+		    }
+		}
+	    } else
+		index += ret;
 	    break;
 	case 0x2:
 	    index += decode_2d(data + index, count - index,
@@ -1793,13 +2023,16 @@ intel_decode(uint32_t *data, int count, uint32_t hw_offset, uint32_t devid)
 	case 0x3:
 	    if (IS_965(devid)) {
 		index += decode_3d_965(data + index, count - index,
-				       hw_offset + index * 4, &failures);
+				       hw_offset + index * 4,
+				       devid, &failures);
 	    } else if (IS_9XX(devid)) {
 		index += decode_3d(data + index, count - index,
-				   hw_offset + index * 4, &failures);
+				   hw_offset + index * 4,
+				   devid, &failures);
 	    } else {
 		index += decode_3d_i830(data + index, count - index,
-					hw_offset + index * 4, &failures);
+					hw_offset + index * 4,
+					devid, &failures);
 	    }
 	    break;
 	default:
@@ -1820,3 +2053,8 @@ void intel_decode_context_reset(void)
     saved_s4_set = 1;
 }
 
+void intel_decode_context_set_head_tail(uint32_t head, uint32_t tail)
+{
+	head_offset = head;
+	tail_offset = tail;
+}
diff --git a/src/mesa/drivers/dri/intel/intel_decode.h b/src/mesa/drivers/dri/intel/intel_decode.h
index c50644a..a13b075 100644
--- a/src/mesa/drivers/dri/intel/intel_decode.h
+++ b/src/mesa/drivers/dri/intel/intel_decode.h
@@ -25,5 +25,7 @@
  *
  */
 
-int intel_decode(uint32_t *data, int count, uint32_t hw_offset, uint32_t devid);
+int intel_decode(uint32_t *data, int count, uint32_t hw_offset, uint32_t devid,
+		 uint32_t ignore_end_of_batchbuffer);
+void intel_decode_context_set_head_tail(uint32_t head, uint32_t tail);
 void intel_decode_context_reset(void);




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